Anytime you are in Nashville it's a good idea to pack an umbrella.
In the summer, pack light layers of clothes and a waterproof jacket.
In the winter, pack heavier layers and a coat. (Yes, it snows sometimes.)
If you are planning on walking in the downtown area, wear tennis shoes--lots of hills.
Luggage and bags:
What ever your means of travel will accomodate. As in all areas, money and credit cards are best kept on you body and not in handbags or totes.
Clothing/Shoes/Weather Gear: Summer: light clothing and comfortable shoes for walking hills. Winter: warm, layered clothing and again comfortable shoes. The weather is changeable.
Toiletries and Medical Supplies: Nashville has many pharmacies including some open 24-7.
Photo Equipment: Dury's and Wolfe Camera both carry a broad range of photo equipment. There are photo shops in most of the pharmacies, discount stores, and there is Chromatics and Star Photo Services.
Camping/Beach/Outdoor Gear: Camping facilities are limited to RV campgrounds. No actual beaches other than lakes. Nashville is built in a valley with rolling hills therefore comfortable walking clothes and shoes are a necessity.
Miscellaneous: Nashville Chamber of Commerce 615-743-3000 or www.nashvillechamber.com
City information: www.nashville.gov and this site has links to events, tourism, etc.